Minipill side effects?

I’ve noticed some symptoms this past week and I’m really hoping they’re simply side effects of my new birth control. They aren’t really listed as side effects but I thought I’d try to reach out and see if anyone has experienced similar symptoms.

I take the mini pill because I’m breastfeeding, and I’ve noticed I have an absolutely insatiable appetite, some very light spotting, and I’ve been lightheaded. Has anyone else experienced this?

I’m really hoping they’re just side effects because they are also symptoms I noticed the last time I was pregnant (not on here to ask if you think I’m pregnant. I know the only way to tell is to take a test, which I am unable to do until payday in a few days. Just asking if anyone has had similar symptoms with the mini pill, so I can try to pinpoint the cause)